Conditionalize conditionally-used variable kNaClTempPrefixVar
Conditionalize conditionally-used variable kNaClTempPrefixVar

Newer Clang complains about unused variables.  The previous cruft patrol
missed this one because it is used (only) on Linux.

BUG= none
TEST= trybots
R=bsy@google.com, mseaborn@chromium.org, sehr@chromium.org

Review URL: https://codereview.chromium.org/27388002

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@12261 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client